Coin safe and detector



UNITED i STATES PATENT OFFICE.

H. G. ROBINSON, OF SOHUYLKI'LL HAVEN, PENNSYLVANIA.

COIN SAFE AND DETECTOR.

Specification of Letters Patent No. 9,844, dated July 12, 1853.

To all 107mm t may concern Be it known that I, HENRY Gr. ROBINSON, ofSchuylkill 'Haven, in the county of Schuylkill and State ofPennsylvania, have invented a new and useful Implement for DetectingCounterfeit Coin, said implement also serving as a portable receptaclefor money, both coin and bank notes; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specification,in which- Figure l, is an external view of the implement, represented asclosed. Fig. 2, is a longitudinal vertical section of ditto, takenthrough the center. Fig. 3, is a detached perspective View of the gageand coin receptacle. Fig. 4, is a detached view of the clamps. Fig. 5,is a longitudinal vertical section of the case; the clamps beingwithdrawn, and applied to the case, for the purpose of weighing thecoin, in the receptacle at one end of the case.

Similar letters of reference indicate corresponding` parts, in each ofthe several ligures.

The implement consists of a cylindrical case, having, at one end, a gageand receptacle box for coin, which will be hereafter described; theremaining portion of the case incloses a pair of clamps, by which thecase is suspended, in order to detect a counterfeit coin by its weight.The portion of the case which incloses the clamps may also contain banknotes. The implement, therefore, may be used, not only as a detector forcounterfeit coin, but may also be carried in lieu of an ordinary walletor pocket-book.

The general co-nstruction and arrangement of the several parts of theimplement constitute the invention.

A, represents a cylindrical case or tube, having, at one end, areceptacle or gage box, B; Figs. 2, 3, and 5. This box, B, is alsocylindrical, and fits within the case, A, and is secured there by ascrew, (a), attached to a partition (L), which 'screw passes into afemale screw, (c), in the bottom of the box, B; Figs. 2, 3, and 5. Thereceptacle or gage box, B, may be sufficiently large or deep to containseveral pieces of coin. At the upper or outer end of the box, B, thereis a recess, (d), cut through and around just one half the circumferenceof the box; this recess will consequently admit a coin to be passedthrough it, as large as the box will contain. The width of the recessmust equal the width of a genuine coin of such a size as the box iscapable of holding. The remaining portion of the case, A, incloses apair of clamps, C. These clamps are attached, at one end, to a rod, D,by a pivot, (e). The opposite ends of the clamps are provided withpoints, (f), (f), see Fig. 4, the use of which will be presently shown.The rod, D, has a screw-thread cut upon it, at one end, whichscrew-thread passes into the center of the screw, (a), as the rod, D, isturned, and the rod and clamps are thereby secured within the case, A.

In order to detect counterfeit coin, the

gage box, B, is withdrawn from the case, A.

If the coin will pass snugly through the recess, (d), into the box, itmust of course be of the same dimensions as a genuine coin; and, if acounterfeit, it will be lighter. The clamps, C, are then withdrawn fromthe case, A; and the small points, (f), (f), are inserted in fulcrumholes, (g), (g), one on each side of the case, seen in Fig. l. Thesefulcrum hol-es are-placed at certain points in the case, so that, when agenuine coin is in the box, B, and the box adjusted within the case,A A,the case, A, will exactly balanceor be in equilibrium, when the case issuspended at the fulcrum holes, see Fig. 5; the coin being representedby, If a counterfeit coin be of the same weight as a. genuine one, itwill necessarily be larger, and will not pass through the recess intothe box, B. lVeighing, in this case, would be unnecessary.

If the receptacle or gage box, B,` contains several coins, they must beall removed when a coin is to be tested by weighing; and the coin to betested should be moistened with spittle, to cause it to adhere to theend of the box, as seen in Fig. 5. as a change of position of the coinwould cause great inaccuracy in weight.

Bank notes may be wound around the rod,

D, and clamps, C, within the case; and the implement will thus form aconvenient receptacle for both coin and bank notes, equally as portableas the ordinary wallet or pocket-book.

' I do not claim detecting counterfeit coin by means of a gage andscales, for that is .well known; but,

Vhat I claim as new, is,-

The peculiar construction of the implel ment, and the manner n which theseveral C, for Jche purpose as shown, and othel- 10 parts are arranged;by which construction Wise constructed, and arranged, substanandarrangement, I combine a portable 1^etally as set folth, in the body ofthe speo- Ceptacle for both coin and bank notes7 conoaton.

5 venent for the pocket and a counterfeit coin detector, the implementbeing formed HENRY G ROBINSON' of a cylindrical ease, A, having a gagebox Witnesses: or receptacle, B, at one end; and the reman- WVM.CHALMERS,

ing portion of the Case nclosng the clamps, S. C. STANTON.

